librw/args.h

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760 B
C
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extern char *argv0;
#define USED(x) ((void)x)
#define SET(x) ((x)=0)
#define ARGBEGIN for((argv0||(argv0=*argv)),argv++,argc--;\
argv[0] && argv[0][0]=='-' && argv[0][1];\
argc--, argv++) {\
char *_args, *_argt;\
char _argc;\
_args = &argv[0][1];\
if(_args[0]=='-' && _args[1]==0){\
argc--; argv++; break;\
}\
_argc = 0;\
while(*_args && (_argc = *_args++))\
switch(_argc)
#define ARGEND SET(_argt);USED(_argt);USED(_argc);USED(_args);}USED(argv);USED(argc);
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#define ARGF() (_argt=_args, _args=(char*)"",\
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(*_argt? _argt: argv[1]? (argc--, *++argv): 0))
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#define EARGF(x) (_argt=_args, _args=(char*)"",\
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(*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))
#define ARGC() _argc